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首页> 外文期刊>International journal of numerical methods for heat & fluid flow >Local entropy generation in co-flowing turbulent jets with variable density
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Local entropy generation in co-flowing turbulent jets with variable density

机译：密度可变的并流湍流射流的局部熵产生

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Purpose - The effects of a co-flow and inlet jet temperature on local entropy generation in turbulent round jets have been studied numerically. The second-order closure turbulence model has been used. The paper aims to discuss these issues. Design/methodology/approach - Numerical results are presented and discussed. Findings - The numerical results for the mean quantities, entrainment of air, mixing efficiency, generation of entropy rate and Merit number are presented and discussed. Originality/value - The expansion of the jet at low velocity of the co-flow and high inlet jet temperature enhances the heat transfer rate and reduces the irreversibility of the jet.
机译：目的-数值研究了并流和入口射流温度对湍流圆形射流中局部熵产生的影响。使用了二阶封闭湍流模型。本文旨在讨论这些问题。设计/方法/方法-提出和讨论数值结果。结果-给出并讨论了平均量，空气夹带，混合效率，熵率的产生和优点值的数值结果。独创性/价值-在同流低速和高入口射流温度下射流的膨胀提高了传热速率，并降低了射流的不可逆性。

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